#!/bin/bash
# Write Server 启动脚本
# 使用 PM2 管理进程

set -e

echo "==================================="
echo "  Write Server 启动脚本"
echo "==================================="

# 检查 .env 文件
if [ ! -f .env ]; then
    echo "错误: 未找到 .env 文件"
    echo "请先复制 .env.example 为 .env 并填写配置"
    exit 1
fi

# 加载环境变量
source .env

# 检查 BLOG_ROOT
if [ -z "$BLOG_ROOT" ]; then
    echo "错误: BLOG_ROOT 未配置"
    exit 1
fi

if [ ! -d "$BLOG_ROOT" ]; then
    echo "错误: BLOG_ROOT 目录不存在: $BLOG_ROOT"
    exit 1
fi

# 检查 Node.js
if ! command -v node &> /dev/null; then
    echo "错误: Node.js 未安装"
    exit 1
fi

# 检查 PM2
if ! command -v pm2 &> /dev/null; then
    echo "错误: PM2 未安装"
    echo "请运行: sudo npm install -g pm2"
    exit 1
fi

# 检查是否已构建
if [ ! -d ".next" ]; then
    echo "项目未构建，开始构建..."
    npm run build
fi

# 停止现有进程（如果存在）
echo "停止现有进程..."
pm2 delete write-server 2>/dev/null || true

# 启动应用
echo "启动 Write Server..."
pm2 start npm --name "write-server" -- run start

# 等待应用启动
echo "等待应用启动..."
sleep 3

# 检查应用状态
if pm2 list | grep -q "write-server.*online"; then
    echo ""
    echo "==================================="
    echo "  启动成功！"
    echo "==================================="
    echo ""
    echo "服务地址: http://localhost:${PORT:-8016}"
    echo ""
    echo "管理命令："
    echo "  查看状态: pm2 status"
    echo "  查看日志: pm2 logs write-server"
    echo "  重启服务: pm2 restart write-server"
    echo "  停止服务: pm2 stop write-server"
    echo ""
else
    echo ""
    echo "==================================="
    echo "  启动失败！"
    echo "==================================="
    echo ""
    echo "请查看日志："
    echo "  pm2 logs write-server"
    echo ""
    exit 1
fi